<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>

<form action="b.jsp" method="post" accept-charset="UTF-8">
<p>
输入任意内容<input type="text" name="content"></p>
<p><input type="submit" value="提交"></p>
</form>

</body>
</html>